lol, this card is the "swiss-army-knife" of monster/spell/trap effect removal. If you don't know which "jammer" counter trap card to use, just throw in this one, and with the cost of discarding the same type of card as the effect used by your opponent, you have a chance to counter any of those effects.
This card is good for decks that need a foundation. Im an advocate for balanced decks.I recommend balancing the card amounts so you can counter for when you need this card the most. Recommended 10 to 12 monsters, 4 to 5 spells,4 to 5 traps.